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Proceedings Paper

Problems of micromechanical robotic systems
Author(s): Mikhail B. Ignatyev; Andrey V. Korshunov; Evgenij N. Pyatishev
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Paper Abstract

The action spectrum for light-induced damage to the retina results from wavelength dependent transmission of the pre-retinal ocular media, wavelength dependent absorption in retinal chromophores, and chromatic aberration of the eye optics. While various light/tissue interaction mechanisms have been implicated, thermal mechanisms dominate in the red and near-infrared for all exposure durations and in the visible for exposures shorter than a few seconds. A number of investigators have measured the transmission of the eye and the spectra of retinal absorbers, and thermal models based on these data predict the broad features of the action spectrum. Dose/response studies with lasers conducted over the past 40 years have mainly validated the thermal models. However, thresholds for laser induced chorioretinal injury using q-switched pulses show a variability ofthreshold with small changes in wavelength

Paper Details

Date Published: 9 November 1999
PDF: 18 pages
Proc. SPIE 3903, Indo-Russian Workshop on Micromechanical Systems, (9 November 1999); doi: 10.1117/12.369476
Show Author Affiliations
Mikhail B. Ignatyev, St. Petersburg State Univ. of Aerospace Instrumentation (Russia)
Andrey V. Korshunov, St. Petersburg State Technical Univ. (Russia)
Evgenij N. Pyatishev, St. Petersburg State Technical Univ. (Russia)

Published in SPIE Proceedings Vol. 3903:
Indo-Russian Workshop on Micromechanical Systems
Vladimir I. Pustovoy; Vinoy K. Jain, Editor(s)

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